Dr. William J. Mazzella, M.D.
Internal medicine physician, Manassas, VA
Old Town M.D.Dr. Mazzella is a physician at Old Town M.D., a private physician practice with monthly memberships.
Facts on this page last checked October 2026. How we check doctors
About Dr. Mazzella
Dr. Mazzella earned his medical degree at the University of North Carolina School of Medicine. His residency was at Carolinas Medical Center, where he served as Chief Resident. His research at the University of Southern California covered marine biology and environmental engineering.
His other training includes the Universita' per Stranieri a Perugia, along with Dante Alighieri Siena. He has training as a Wilderness Medicine Instructor. In 2020 he launched the all-volunteer nonprofit MedStreet.
He founded MedStreet. His nonprofit MedStreet has provided free healthcare to homeless people in Alexandria, VA and in nearby Washington, D.C.
Membership and fees
A child membership is $95 per month for ages 0-18 and requires an accompanying adult membership.
Adult membership is $208 per month for ages 19-39, $291 for ages 40-59, and $375 for ages over 59.
HSA/FHA accounts often reimburse for Old Town M.D. services.
Education and credentials
Hospital and practice affiliations
Location
Recognition and research
Awards
Patient reviews
Questions patients ask
Does Dr. Mazzella take insurance, or offer a membership?
Old Town M.D. sells monthly memberships and also offers house calls and telehealth calls. HSA/FHA accounts often reimburse for Old Town M.D. services.
Where did Dr. Mazzella train?
His medical degree is from University of North Carolina School of Medicine. His residency was at Carolinas Medical Center.
Does Dr. Mazzella offer telehealth?
The clinic offers telehealth calls and house calls.
Does Dr. Mazzella provide free care to people who are homeless?
Through his nonprofit MedStreet he has provided free healthcare to homeless people in Alexandria, VA and in nearby Washington, D.C.
Are you Dr. Mazzella? Claim this profile for free. Report a correction.
